update base tarball

Author: akerl

Dockerfile

@@ -5,7 +5,7 @@ ADD shim/shim /tmp/ducktape/shim
 ADD cert /tmp/ducktape/cert
 ADD https://github.com/dock0/ducktape/releases/download/$DUCKTAPE_VERSION/ducktape /tmp/ducktape/ducktape
 RUN ["/tmp/ducktape/shim", ""]
-RUN ["/tmp/ducktape/ducktape", "https://github.com/dock0/tarball_arch/releases/download/v2.1.6/root.tar.bz2"]
+RUN ["/tmp/ducktape/ducktape", "https://github.com/dock0/tarball_arch/releases/download/v2.1.7/root.tar.bz2"]
 RUN ln -s /proc/mounts /etc/mtab
 RUN pacman -Syy --needed --noconfirm archlinux-keyring
 RUN pacman -Su --needed --noconfirm git iproute2 iputils procps-ng tar which licenses util-linux